Improvement in the mode of elevating lamp-chimneys



1. (a. LEFHNGWELL.

Mode of Elevating Lamp Chimneys.

Patented March 17, 1863.

775066665 I .r/fl um 741 W 1 00M or UNITED STATES PATENT OFFICE.

JOHN G. LEFFINGWVELL, OF NEWARK, NEW JERSEY.

IMPROVEMENT IN THE MODE 0F ELEVATING LAMP-CHIMNEYS.

Specification forming part of Letters Patent No. 37,917, dated March 17,1863.

To all whom it may concern:

Be it known that I, J. G. LEFFINGWELL, of Newark, in the county ofEssex, in the State of New Jersey, have invented a new and Improved Modeof Trimming the Wick of a Coal-Oil Lamp Without Removing the Chimney;and I do hereby declare that the following is a full and exactdescription thereof, reference being bad to the accompanyingdrawings,and to the letters of reference marked thereon, making a part of thisspecification, in which- Figure l is a perspective view of an ordinarycoaloiI-lamp burner with my invention applied to it and the cone andgallery raised so as to fully expose the wick-tube. Fig. 2 is likewise aperspective view of an ordinary coal-oil-lamp burner with my inventionapplied to it and the cone and gallery let down so a to conceal thewick-tube.

Similar letters of reference indicate correresponding parts in theseveral figures.

This invention relates to an improvement in the manner of raising andlowering the gallery of coal-oil lamps, so that the wick can be trimmedand lighted without removing the chimney.

The object of the invention is to adapt a plan so that the gallery canbe easily raised and lowered, and at the same time, when it is necessaryto trim the wick, there will be sufficient room for the spread of thescissors. This object is attained by connecting a strip of brass oneither side of the exterior of the burner opposite to one another, and astrip on either side of the exterior of the gallery, said strips beingconnected by means of clasps, so that slides are formed for them to workwithin each other, the gallery being thus readily slipped up or down andthe wicktube exposed or concealed.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents an ordinary coal-oil lamp burner, on either side of which astrip of flexible metal, B, of about three-sixteenths of an inch inwidth, is soldered at 0. These strips of metal extend downward in acurved form, as shown at (I. They then extend upward in a straight lineas far as the top of the gallery,

where a clasp is formed on them by bending small pieces over, as shownat e. and the other ends of the same strips of metalare made secure atf, thus keeping them firm. Two other strips of metal are made secure tothe gallery by means of solder at g, the upper ends being bent over, soas to form fingerrests to raise the gallery by, as shown at J. The otherends pass through clasps e at the upper ends of strips B, when otherclasps are formed at the ends of these likewise, as shown at h. Byplacing the thumb and forefinger under the curved ends J and pushingupward, the strips of metal secured to the gallery working in clasps e,in connection with clasps h, at the ends of the strips of metal attachedto the gallery, form a slide, so that the gallery and the chimney whichrests on it are readily raised high enough tofully expose the wick inorder to trim and light it, the distance between the strips of metalwhich are attached to the gallery being ample for the spread of thescissors. The strips of metal B need not necessarily be flat, for theycan as well be oval or round. In the latter case the slides g, attachedto the gallery, work within the guides B, which are attached to theburner.

I am aware that there are methods in use of raising and lowering thegalleries of coaloil lamps in order to conceal or expose the wicktube,but the upright pieces of metal which are used for that purpose areplaced in the interior of the burner and so close to one another thatthere is not room enough for the spread of the scissors, therebyrendering it very inconvenient and useless.

Having thus described my invention and the manner in which the same isor may be used, what I claim as new, and desire to secure by LettersPatent, is

1. The guides B, or their equivalent, when attached to the exterior ofthe burner.

2. The slides g, or their equivalent, when atttached to the exterior ofthe gallery, and working either on the insides or outsides of guides B.

JOHN G. LEFFINGWELL.

Witnesses:

RANSOM ORosBY, J OSEPH J ONES.

